Improvement in printing-presses



' 4Sheets-Sheet1.

W. H. WOODCOCK.

PRINTING-PRESS. No. 189,829. Patented April 17, 1877.

N.PETERS. FHDTO-UTNOGRAFHER, WASHINGTON D C WITNESSES 3 I I I l 5 W r r 2 k fly! r V l 5 I 4 Sheets-Sheet Z.

W. H. WOODCOCK.

PRINTING-PRESS.

Patented April 17, 1877.

ENVENTOR ATTORNEY,

v 4Sheets-Sheet 3. W. H-. WOODCOCK. PRINTING-PRESS. No. 189,829. Patented. April 17, 1877.

INVENTOR V ATTORNEY NJFEI'ERS, Pnbmumnemmsn.wagumemn, n c.

4Sheets Sheet4.

W. H. WOODCOCK. PRINTING-PRESS.

189,329 Patented April17, 1877.

' 35 WITN SES INVENTOR ATTORNEYS PATENT OFFICE.

WILLIAM H. WOODCOCK, OF WILLIAMSBUEG, NEW YORK.

IMPROVEMENT IN PRlNTlNG-PRESSES.

Specification forming part of Letters Patent No. 189,829, dated April 1'7, 1877; application filed May 9, 1874.

Figure 1 of the drawing is a representation of a side view, and Figs. 2, 3, and 4 are detail views of my printing-press. Figs. 5 and 6 are sectional views.

This invention has relation to printingpresses wherein is employed a rocking cylinder, or a cylinderwhich does not rotate, and which is fed from both sides.

The nature of my invention consists in constructing the iimpression-cylinder of a printingpress with removable sections, for the purpose of enabling me, by using sections of different widths, to increase or diminish the capacity of the cylinder for sheets of difierent sizes.

It also consists in the combination of adjustable gripers and removableimpressionsections with a rocking impressioncylinder.

Inthe annexed drawings, Figs. 1, 2, and 3, A designates the frame of a printing-press, and B the impressioncylinder thereof, which cylinder'receives a rocking or oscillating motion, while the press-bed reciprocates beneath it in the usual well-known manner.

This cylinder is adapted for double feed ing, and to this end it is provided with a double set of gripers, a a, and two feedboards, C C, arranged on opposite sides of it.

I) D designate two fly-eylinders, which are applied in the free cn'ds of frames D l), which frames are hinged or pivoted to the press-frame A, so that they can be thrown up to the position indicated in dotted lines Fig. 1, when it is desired to afford access to the impression-cylinder, or to allow the operator to conveniently make ready the form.

The sheets are taken from the impressioncylinder by the fly-cylinders, and delivered to the flies in the usual well-known mannerthat is to say, by means of gripers and tapes; and when these cylinders are in working positions they are rotated by means of spurwheels b b, which receive their motions from a spur-wheel, b through the medium of a spur-wheel, b

The rods a a have their end bearings in the ends of the cylinder B, and are adjustable to or from the impression part of this cylinder, for the purpose of having the ends of the gripers reach more or less over said surface, according to the size of the sheets which are to be printed. The ends of the griperrods a a have collars and nuts on them, for confining them after they are adjusted.

The impression-surface of the cylinder B can be enlarged or diminished to adapt it for sheets of different sizes. This I do by means of removable segments or sections (1, which are suitably secured in their places, and which can be conveniently removed and their places supplied by other sections, presenting a greater or less area for impression.

The adjustment of the griper-rods for sheets varying in size, and the use of removable sectionsd, necessitates the employment of feedboards C C, which are vertically and longitudinally adjustable, and to this end the lower ends of these boards are connected to screws g, which are adjustable up and down by means of nuts, and which are also adjustable in a direction with the length of the press-- frame A. The upper ends of the boards C C rest upon rods or rollers.

Having described my invention, what I claim as new is l. The rocking impression-cylinder B, having removable impressionsections d, applied to it for the purpose described.

2. The combination of adjustable gripers a with sections d, removably applied to the cylinder B, substantially as described.

In testimony that I claim the above I have hereunto subscribed my name in the presence of two witnesses.

WILLIAM HENRY WOODCOCK.

Witnesses:

.D. D. KANE,

GEORGE E.UPHA1VL 

